How often does membrane have to be changed please?

The RO membrane is every 2 years, but depends on usage

I've been badly let down by Water2Buy. Is your 5 stage system the same as theirs?

No tried Water2Buy but I had the iSpring 75GDP for 5 months now and it works perfectly well. I chose the pump assisted version because the mains water pressure is only 2bar. Water before filtering is 275ppm and after passing through the RO is 15-20ppm so it is doing it's job. A Brita filter reduced it to 200ppm.

Would this work in barbados where power surply is 110v

Should do. The system works from water pressure and is not connected to the electric.

As I have no power source near my kitchen sink, is it possible to install the system without power socket/electrical wiring? Or is it mandatory?

Hi, Thank you for posting your question here. Unfortunately, the pump needs electricity to work so it's mandatory. If the incoming pressure is at least 45 psi you can buy the non-booster pump system instead like the RCC7. Kind Regards, iSpring Water Systems

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Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7

Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7

Product ID: 53005268

Details

External testing certification
ANSI
Item weight
0.42 Pounds
Material
Iron
Product benefits
Removes wide
Product dimensions
5D x 5W x 10H

💧75 GPD capacity

📏11.75" x 1.75" standard size

🧪99% contaminant removal

€ 74.48

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Description

💧 Elevate your hydration game with the ultimate clean water upgrade!

FITS LIKE A GLOVE - Standard 11.75" x 1.75" size designed to seamlessly replace most under-sink RO membranes without hassle.
HYDRATE YOUR WHOLE CREW - Generates up to 75 gallons of clean water daily—perfect for busy households and health-conscious professionals.
SUPPORT THAT NEVER QUITS - Activate your lifetime warranty and enjoy free tech support for peace of mind and uninterrupted purity.
ENGINEERED FOR EXCELLENCE - NSF/ANSI certified membrane with ultra-fine 0.0001 micron filtration ensures only pure water molecules pass through.
PURE WATER ZERO COMPROMISE - Removes up to 99% of 1,000+ contaminants including lead, chlorine, and fluoride for crystal-clear hydration.

The iSpring Greatwell NSF Certified Reverse Osmosis Membrane MC7 is a high-performance replacement filter designed for standard under-sink RO systems. It delivers up to 75 gallons of purified water daily by removing 99% of over 1,000 contaminants, including lead and chlorine, through a 0.0001 micron food-grade membrane. Certified to NSF/ANSI standards, this membrane fits most RO housings and comes with lifetime tech support and warranty registration for reliable, long-lasting water purification.

Specifications

ASIN	B007TBB69W
Benefits	Removes wide spectrum of impurities and contaminants for safer water consumption
Best Sellers Rank	14,366 in DIY & Tools ( See Top 100 in DIY & Tools ) 7 in Under-Sink Filters
Brand	iSpring
Brand Name	iSpring
Compatible Water Purifier Models	iSpring RCC7
Country Of Origin	China
Customer Reviews	4.7 out of 5 stars 2,110 Reviews
EU Spare Part Availability Duration	2 Years
External Testing Certification	NSF
External testing certification	NSF
Global Trade Identification Number	00662425048120
Item Dimensions D x W x H	5D x 5W x 10H centimetres
Item Weight	0.42 Pounds
Item weight	0.42 Pounds
Manufacturer	iSpring
Manufacturer Part Number	MC7
Material	Polypropylene (PP)
Material Type	Polypropylene (PP)
Model Number	MC7
Number of Items	1
Product benefits	Removes wide spectrum of impurities and contaminants for safer water consumption
Product dimensions	5D x 5W x 10H centimetres
Set Name	Single
UPC	662425048120
Unit Count	1.0 count

Reviews

S**A

Worth the money

Really good filters from this brand / not altering the taste of water as from previous company which i used and gave me a lot of debris at the outer part of filter

22.01.2025

I**.

Good

13.08.2024

M**O

As advertised

Does what it should ,on the pricey side tho

25.07.2022

L**L

Very good quality

Excellent

5.02.2022

A**Y

Five Stars

Fits, works.

23.01.2016

D**.

Good

Does the job, thank you!

14.07.2022

H**Y

Fué Compatible con mi ósmosi inversa marca: Roto..plss

Excelente producto!! Funciona muy bien!

17.03.2019

M**R

Calidad....

Muy buena membrana, me dura perfectamente 2 años sin problemas.

3.01.2026

T**Z

très bien

très bien RAS

22.10.2025

S**M

ممتاز مواصفات أمريكية

أجود وأضمن من الصيني اللي في السوق ، كنت أطلبه من أمريكا والان متوفر هنا ، نصيحة لا تبخل على نفسك وابحث عن الجودة هذا ماء تشربه 👍😎

16.09.2024

A**L

Excellent product & cusotmer service.

Great product(RCC7P-AK), great cusotmer service (special thanks to Nick) for help on fixing my problem. The system runs flaw less once setup is done appropriately. Dont have to do multiple follow ups like other company cusotmer care services.

3.03.2026

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€ 74.48

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Customer service was outstanding when I had questions about the product.

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